WO2016013733A1 - Écouteurs et procédé de fonctionnement d'écouteurs - Google Patents

Écouteurs et procédé de fonctionnement d'écouteurs Download PDF

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Publication number
WO2016013733A1
WO2016013733A1 PCT/KR2014/012482 KR2014012482W WO2016013733A1 WO 2016013733 A1 WO2016013733 A1 WO 2016013733A1 KR 2014012482 W KR2014012482 W KR 2014012482W WO 2016013733 A1 WO2016013733 A1 WO 2016013733A1
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WO
WIPO (PCT)
Prior art keywords
terminal
microphone
earset
right speaker
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2014/012482
Other languages
English (en)
Korean (ko)
Inventor
송민우
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority to EP14897915.6A priority Critical patent/EP3174309B1/fr
Priority to US15/328,230 priority patent/US10225642B2/en
Priority to CN201480080811.5A priority patent/CN106537932B/zh
Publication of WO2016013733A1 publication Critical patent/WO2016013733A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/04—Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/107—Monophonic and stereophonic headphones with microphone for two-way hands free communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/05—Detection of connection of loudspeakers or headphones to amplifiers

Definitions

  • Various embodiments of the present invention relate to an earset and a method of operating the earset for removing noise generated when a phone call using the earset mounted on an electronic device.
  • earsets such as headphones, headsets, ear microphones, etc. provide convenience to users of electronic devices, such as blocking some external noise and / or preventing unnecessary noise from being transmitted to the surrounding people. Accordingly, in recent years, users who use electronic devices are often equipped with an ear set in the electronic device in various situations such as driving or walking while listening to music or making phone calls using the ear set.
  • the earset commonly used in Korea and abroad is a four-pole standard earset (also called a four-pole earset), and a four-pole earset has a signal line assigned to each of the microphone, left speaker, right speaker, and ground.
  • the ground is implemented in a shield (shield) structure, it is combined with the audio ground and the shield ground.
  • Earsets commonly used in the prior art is a four-pole standard circuit
  • the ground of the ear set to which the four-pole standard circuit is applied is made of one ground for both audio ground and shield ground. It surrounds the left speaker and the right speaker. Accordingly, when the earset is brought close to the antenna, RF (TDMA) noise is excited to the ground surrounding the left and right speakers and the microphone, and the ground is combined with the audio ground and the shield ground, so that the RF noise is directly connected to the earset. There is a problem of getting into the electronic device.
  • TDMA TDMA
  • the user who actually uses the electronic device makes a lot of phone calls using the earset while driving or walking, and the user who uses the electronic device in such a situation is exposed to a lot of noise generated by the surrounding environment. It is often difficult to talk on the phone.
  • various embodiments of the present invention are to provide an earset and a method of operating the earset to remove noise generated when a telephone call using the earset mounted on the electronic device while maintaining the four-pole standard of the earset.
  • the microphone terminal connected to the microphone of the earset, an audio ground terminal connected to the audio ground of the earset, the right speaker terminal, an electronic device connecting portion having a left speaker terminal Wow;
  • the voltage of the microphone terminal, the right speaker and the left speaker of the ear set to be commonly connected to one of the right speaker terminal and the left speaker terminal, and the other of the right speaker terminal and the left speaker terminal the earset It may include a switch to be connected to the shield ground of the.
  • a first microphone terminal connected with the first microphone of the earset, an audio ground terminal connected with the audio ground of the earset, a right speaker terminal, and a left speaker terminal
  • An electronic device connecting portion According to the voltage of the first microphone terminal, the right speaker and the left speaker of the earset are commonly connected to one of the right speaker terminal and the left speaker terminal, and the other of the right speaker terminal and the left speaker terminal It may include a switch to be connected to the second microphone of the earset.
  • the earset in a method of operating an earset having a microphone terminal, an audio ground terminal, a right speaker terminal, and a left speaker terminal, when the earset and the electronic device are connected, the earset is the electronic device.
  • the other one of the may include a switching operation to be connected to the shield ground of the earset.
  • the earset in a method of operating an earset having a microphone terminal, an audio ground terminal, a right speaker terminal, and a left speaker terminal, when the earset and the electronic device are connected, the earset is the electronic device.
  • the switch of the earset to connect the right speaker and the left speaker of the earset in common with one of the right speaker terminal and the left speaker terminal, the right speaker terminal and the left speaker terminal It may include a switching operation for connecting the other one of the ear microphone and the second microphone.
  • the earset and the operation method of the earset it is possible to implement a device for separating the audio ground and the shield ground of the earset while maintaining the four-pole standard of the earset. Accordingly, it is possible to remove the noise generated when the phone call using the earset mounted on the electronic device.
  • a method of operating an earset and an earset includes attaching two microphones to an earset while maintaining a four-pole standard of the earset, thereby applying a noise suppressor technology using two microphones applied to a conventional electronic device. It can also be implemented on earsets. Accordingly, it is possible to remove the noise generated when the phone call using the earset mounted on the electronic device.
  • FIG. 1 is an external view of an earset inserted into an electronic device according to an embodiment of the present invention.
  • FIG. 2 is a circuit diagram of an ear set according to a first embodiment of the present invention.
  • FIG. 3 is a circuit diagram of an ear set according to a second embodiment of the present invention.
  • FIG. 4 is an external view of an earset having two microphones inserted into an electronic device according to an embodiment of the present invention
  • FIG. 5 is a circuit diagram of an earset having two microphones according to a first embodiment of the present invention.
  • FIG. 6 is a circuit diagram of an earset having two microphones according to a second embodiment of the present invention.
  • FIG. 7 is a circuit diagram of an ear set according to a third embodiment of the present invention.
  • FIG. 8 is a circuit diagram of an ear set according to a fourth embodiment of the present invention.
  • FIG. 9 is a circuit diagram of an earset having two microphones according to a third embodiment of the present invention.
  • FIG. 10 is a circuit diagram of an earset having two microphones according to a fourth embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of an earset according to the prior art.
  • expressions such as “or” or “at least one of A or / and B” include any and all combinations of words listed together.
  • each of “A or B” or “at least one of A or / and B” may include A, may include B, or may include both A and B.
  • Expressions such as "first,” “second,” “first,” “second,” and the like used in various embodiments of the present invention may modify various elements of the various embodiments, but limit the corresponding elements. I never do that.
  • the above expressions do not limit the order and / or importance of the corresponding elements.
  • the above expressions may be used to distinguish one component from another.
  • both a first user device and a second user device are user devices and represent different user devices.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • a component When a component is said to be “connected” or “connected” to another component, the component may or may not be directly connected to or connected to the other component. It is to be understood that there may be new other components between the other components. On the other hand, when a component is referred to as being “directly connected” or “directly connected” to another component, it will be understood that there is no new other component between the component and the other component. Should be able.
  • An electronic device may be a device including a communication function.
  • electronic devices include smartphones, tablet personal computers, mobile phones, video phones, e-book readers, desktop personal computers, and laptops.
  • HMD head-mounted-device
  • the electronic device may be a smart home appliance having a communication function.
  • Smart home appliances are, for example, televisions, digital video disk (DVD) players, audio, refrigerators, air conditioners, cleaners, ovens, microwave ovens, washing machines, air cleaners, set-top boxes, TV boxes (e.g. For example, it may include at least one of Samsung HomeSync TM, Apple TV TM, or Google TV TM), game consoles, electronic dictionaries, electronic keys, camcorders, or electronic photo frames.
  • the electronic device may be a variety of medical devices (e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT), imaging device, ultrasound, etc.), navigation device, GPS receiver (global positioning system receiver), event data recorder (EDR), flight data recorder (FDR), automotive infotainment devices, marine electronic equipment (e.g. marine navigation systems and gyro compasses), avionics, It may include at least one of a security device, a vehicle head unit, an industrial or household robot, an automatic teller s machine (ATM) of a financial institution, or a point of sales (POS) of a store.
  • MRA magnetic resonance angiography
  • MRI magnetic resonance imaging
  • CT computed tomography
  • imaging device e.g., ultrasonics
  • GPS receiver global positioning system receiver
  • EDR event data recorder
  • FDR flight data recorder
  • automotive infotainment devices e.g. marine navigation systems and gyro compasse
  • an electronic device may be a piece of furniture or building / structure that includes a communication function, an electronic board, an electronic signature receiving device, a projector, or various It may include at least one of the measuring device (for example, water, electricity, gas, or radio wave measuring device).
  • the measuring device for example, water, electricity, gas, or radio wave measuring device.
  • the electronic device according to various embodiments of the present disclosure may be one or a combination of the above-described various devices. Also, an electronic device according to various embodiments of the present disclosure may be a flexible device. In addition, it will be apparent to those skilled in the art that the electronic device according to various embodiments of the present disclosure is not limited to the above-described devices.
  • the term “user” used in various embodiments may refer to a person who uses an electronic device or a device (eg, an artificial intelligence electronic device) that uses an electronic device.
  • the earset 100 may include an electronic device connecting unit 120, a microphone 140, a right speaker 160, and a left speaker 180.
  • the earset 100 may further include a volume up and volume down button (not shown) for adjusting the volume of the electronic device.
  • the electronic device connection unit 120 is inserted into an ear jack (not shown) of the electronic device 190, and may connect the ear set 100 to the electronic device 190.
  • the electronic device connecting unit 120 may include a microphone terminal 122, an audio ground terminal 124, a right speaker terminal 126, and a left speaker terminal 128.
  • FIG. 2 is a circuit diagram of an ear set according to a first embodiment of the present invention.
  • the switch 240 is mounted on the ear set 200, and the switch 240 is connected to the right speaker 277 and the left speaker of the ear set 200 according to the voltage input to the microphone terminal 222. 279 may be connected in common with one of the right speaker terminal 226 and the left speaker terminal 228, and the other of the right speaker terminal 226 and the left speaker terminal 228 may be connected with the shield ground 275.
  • the conventional earset which is made of both audio and shield grounds, can be implemented to operate as a separate set of audio and shield grounds.
  • the switch 240 causes the right speaker 277 to be connected to the left speaker terminal 228, and the shield ground 275 to the right speaker terminal ( By performing a switching operation to be connected to 226, the audio ground 273 and the shield ground 275 of the earset 200 may be separated from each other.
  • the switch 240 causes the right speaker 277 to be connected to the right speaker terminal 226, and the shield ground 275 is connected to the audio ground terminal ( By performing a switching operation to be connected to the 224, the shield ground 275 and the audio ground 273 of the earset 200 may be implemented as a conventional method.
  • the left speaker 279, the audio ground 273, and the microphone 271 are connected to the left speaker terminal 228, the audio ground terminal 224, and the microphone terminal 222, respectively, as in the related art.
  • the ear set device 250 of the ear set 200 may include an electronic device connecting unit 220 and a switch 240.
  • the electronic device connection unit 220 may include a microphone terminal 222, an audio ground terminal 224, a right speaker terminal 226, and a left speaker terminal 228 of an earset having a conventional structure.
  • the switch 240 may include a power input terminal 241, a first signal input terminal 242, a second signal input terminal 243, a first signal output terminal 246, a second signal output terminal 247, and a third signal output terminal 248. It may include, the switch 240 may be an analog switch.
  • the microphone terminal 222, the audio ground terminal 224, and the left speaker terminal 228 are the same as those of a conventional structure, and the microphone terminal 222 includes the first microphone 271 and the audio ground terminal 224. ) May be configured to be connected to the audio ground 273 and the left speaker terminal 228 to the left speaker 279 through a signal line.
  • the right speaker terminal 226 may be configured to be connected to the right speaker 277 or the shield ground 275 according to the switching operation of the switch 240.
  • the left speaker terminal 228 may be further configured to be connected or not connected to the right speaker 277, and the audio ground terminal 224 may further include a shield ground 275. Can be configured to be connected or not connected.
  • the microphone terminal 222 may be configured to be connected to the microphone 271 of the ear set 200 and the power input terminal 241 of the switch 240 by a signal line.
  • the audio ground terminal 224 may be configured to be connected to the audio ground 273 and the third signal output terminal 248 of the switch 240 by a signal line.
  • the right speaker terminal 226 may be configured to be connected to the second signal output terminal 247 of the switch 240 by a signal line.
  • the left speaker terminal 228 may be configured to be connected to the left speaker 279 of the ear set 200 and the first signal output terminal 246 of the switch 240 by a signal line.
  • the power input terminal 241 of the switch 240 is configured to be connected to a signal line and a signal line connecting the microphone terminal 222 and the microphone 271, and the first signal input terminal 242 is a right speaker of the ear set 200. 277 and the second signal input terminal 243 may be configured to be connected to the shield ground 275 of the ear set 200 by a signal line.
  • the switch 240 may be supplied with power through the power input terminal 241, the switch 240 according to the input voltage of the power input terminal 241 (in accordance with the voltage of the microphone terminal 222), the switch ( The first signal input terminal 242 of the 240 is switched to be connected to the first signal output terminal 246 or the second signal output terminal 247, and the second signal input terminal 243 of the switch 240 is connected to the second signal output terminal ( 247 or the third signal output terminal 248 may be switched to be connected.
  • the switch 240 switches the first signal input terminal 242 to be connected to the second signal output terminal 247 when the voltage of the power input terminal 241 (the microphone terminal 222) is smaller than the specified reference voltage.
  • the second signal input terminal 243 may be switched to be connected to the third signal output terminal 248.
  • the first signal input terminal 242 is switched to be connected to the first signal output terminal 246.
  • the second signal input terminal 223 may be switched to be connected to the second signal output terminal 247.
  • the electronic device 280 may include an ear jack 281 having a conventional structure, and the ear jack 281 may include a microphone terminal 282, an audio ground terminal 284, a right audio terminal 286, and Left audio terminal 288 may be included. Also, the microphone terminal 282, the audio ground terminal 284, the right audio terminal 286, and the left audio terminal 288 are typically configured to be connected to a codec (not shown) of the electronic device 280 by a signal line. do.
  • the microphone terminal 282 is configured to be connected to a power supply unit (not shown) of the electronic device 280, and may supply power to the ear set 200, and receive a microphone signal from the microphone 271 of the ear set 200. Can be.
  • the right audio terminal 286 may output the right audio signal of the electronic device 280 to the ear set 200.
  • the right audio terminal 286 may or may not be connected to the main ground 295 of the electronic device 280 according to the switching operation of the switch 290 of the electronic device 280. It may be connected in series between the right audio terminal 286 and the main ground 295.
  • the switch 290 is connected to the microphone terminal 282 by a signal line, for example, when the voltage output to the microphone terminal 282 is greater than or equal to the specified reference voltage, the main ground 295 of the electronic device 280 ) Is connected to the right audio terminal 286, and if the voltage output to the microphone terminal 282 is lower than the specified reference voltage, the main ground 295 of the electronic device 280 is connected to the right audio terminal 286. You can prevent it.
  • the left audio terminal 288 may output the left audio signal of the electronic device 280 to the ear set 200.
  • the microphone terminal 222 is typically used. Is connected to the microphone terminal 282 of the electronic device 280, and receives power from the electronic device 280 through the microphone terminal 222, and also voice is input through the microphone 271 of the earset 200
  • the microphone signal may be output to the electronic device 280.
  • the audio ground terminal 224 is connected to the audio ground terminal 284 of the electronic device 280
  • the right speaker terminal 226 is connected to the right audio terminal 286 of the electronic device 280
  • the left speaker The terminal 228 may be connected to the left audio terminal 288 of the electronic device 280.
  • the earset device 350 of the earset 300 may further include a voltage detector 360 that is typically used when checking a voltage in the configuration of FIG. 2.
  • the voltage detector 360 may output a high or low signal to the switch 340 according to the voltage of the microphone terminal 322. For example, if the voltage at the microphone terminal 322 is lower than the specified reference voltage, the voltage detector 360 outputs a low signal. If the voltage at the microphone terminal 322 is higher than the specified reference voltage, the voltage detector 360 is high. Can output a signal.
  • the high or low signal may be a switching control signal of a switch.
  • the switch 340 allows the right speaker 377 to be connected to the left speaker terminal 328 and the shield ground 375 to the right speaker terminal 326.
  • a switching operation for connecting the right speaker 377 to the right speaker terminal 326 and a shield ground 375 to the audio ground terminal 324. Can be performed.
  • the ear set device 350 of the ear set 300 may include an electronic device connecting unit 320, a switch 340, and a voltage detector 360.
  • the electronic device connection unit 320 may include a microphone terminal 322, an audio ground terminal 324, a right speaker terminal 326, and a left speaker terminal 328.
  • the switch 340 includes a power input terminal 341, a first signal input terminal 342, a second signal input terminal 343, a third signal input terminal 344, a first signal output terminal 346, and a second signal output terminal 347.
  • the third signal output terminal 348 may be included, and the switch 340 may be an analog switch.
  • the voltage detector 360 may include a voltage detector input terminal 361 and a voltage detector output terminal 362.
  • the microphone terminal 322 may be configured to be connected to the microphone 371 of the earset 300 and the power input terminal 341 of the switch 340 by a signal line.
  • the audio ground terminal 324 may be configured to be connected to the third signal output terminal 348 of the switch 340 by a signal line.
  • the right speaker terminal 326 may be configured to be connected to the second signal output terminal 347 of the switch 340 by a signal line.
  • the left speaker terminal 328 may be configured to be connected to the left speaker 379 of the earset 300 and the first signal output terminal 346 of the switch 340 by a signal line.
  • the power input terminal 341 of the switch 340 is configured to be connected to a signal line and a signal line connecting the microphone terminal 322 and the microphone 271, and the first signal input terminal 342 is a right speaker of the earset 300.
  • 377 and the second signal input terminal 343 may be configured to be connected to the shield ground 375 of the earset 300 and the signal line.
  • the third signal input terminal 344 of the switch 340 may be configured to be connected to the voltage detector output terminal 363 by a signal line.
  • the voltage detector input terminal 361 of the voltage detector 360 is configured to be connected to a signal line and a signal line connecting the microphone terminal 322 and the power input terminal 341, and the voltage detector output terminal 362 is connected to the switch 340. It may be configured to be connected to the third signal input terminal 344.
  • the voltage detector 360 outputs a high or low signal through the voltage detector output terminal 362 according to the input voltage of the voltage detector input terminal 361 (according to the voltage of the microphone terminal 322) and switches 340. It may be input to the third signal input terminal 344 of the. For example, if the voltage of the voltage detector input terminal 361 (the microphone terminal 322) is lower than the specified reference voltage, the voltage detector 360 outputs a low signal, and the voltage detector input terminal 361 (the microphone terminal 322) If the voltage is greater than or equal to the specified reference voltage, the voltage detector 360 may output a high signal.
  • the switch 340 may receive power through the power input terminal 341, and the switch 340 is output from the voltage detector 360 and according to the high or low signal input through the third signal input terminal 344.
  • the first signal input terminal 342 of the switch 340 is switched to be connected to the first signal output terminal 346 or the second signal output terminal 347, and the second signal input terminal 343 of the switch 340 is switched to the second signal.
  • the switch may be connected to the output terminal 347 or the third signal output terminal 348.
  • the switch 340 when the switch 340 receives the low signal through the third signal input terminal 344, the switch 340 switches the first signal input terminal 342 to be connected to the second signal output terminal 347 and the second signal input terminal 343. May be switched to be connected to the third signal output terminal 348. For example, when the switch 340 receives the high signal through the third signal input terminal 344, the switch 340 switches the first signal input terminal 342 to be connected to the first signal output terminal 346 and the second signal input terminal. 323 may be switched to be connected to the second signal output terminal 347.
  • the electronic device 280 of FIG. 3 may correspond to the electronic device 280 shown in FIG. 2. Therefore, a description overlapping with the description with reference to FIG. 2 regarding the electronic device 280 and the connection relationship between the electronic device 280 and the ear set 300 will be omitted.
  • the ear set 200 and 300 may receive power from the electronic device 280.
  • the switches 240 and 340 of the ear set 200 and 300 connect the right speaker 277 and 377 and the left speaker 279 and 379 of the ear set 200 and 300 to the right speaker terminal. 226; 326 and the left speaker terminals 228; 328 to be connected in common, and the other of the right speaker terminals 226; 326 and the left speaker terminals 228; 328 to the earset 200; Switching operation to be connected to the shield ground (275; 375) of the.
  • the ear set 200; 300 when the ear set 200; 300 is connected to the electronic device 280, when the electronic device 280 is in a call mode, the ear set 200; 300 is powered through the microphone terminal 222; 322. It may be supplied, and the power at this time may be maintained at, for example, 2.8V.
  • the earsets 200 and 300 when the earsets 200 and 300 are connected to the electronic device 280, when the electronic device 280 is in a normal mode such as an MP3 mode or a non-call mode, the earsets 200 and 300 may include a microphone terminal 222; 322 may be supplied with power, and the power may be maintained at, for example, 1.8V.
  • the switches 240 and 340 switch the first signal input terminals 242 and 342 to be connected to the first signal output terminals 246 and 346 and the second signal input terminals 243 and 343 to the second signal output terminal (
  • the shield grounds 275 and 375 of the earsets 200 and 300 may be connected to the main ground 295 of the electronic device 280 by switching to be connected to the 247 and 347.
  • the shield ground (275; 375) and the audio ground (273; 373) of the earsets (200; 300) are separated, and the ground separation / mono mode (GND separation / MONO MODE) that sends sound to one channel (one speaker).
  • GND separation / MONO MODE ground separation / mono mode
  • the switches 240 and 340 switch the first signal input terminals 242 and 342 to be connected to the second signal output terminals 247 and 247 and the second signal input terminals 243 and 343 to the third signal output terminal 248.
  • the right speaker (277; 377) of the earset (200; 300) is connected to the right audio terminal 286 of the electronic device 280 (the right audio terminal 286 at this time is the main ground ( 295).
  • the shield grounds 275 and 375 and the audio grounds 273 and 373 of the earsets 200 and 300 are not separated from each other and the two channels (left and right speakers 279 and 379 and 277 and 377) are separated. It can be set to GND non-separated / stereo mode to send sound to
  • the ear set 200 (300) is mounted on the electronic device 280 to make a telephone call using the ear set (200; 300).
  • the shield ground 275 (375) of the earset can block RF noise.
  • the shield grounds 275 and 375 of the earsets 200 and 300 are connected to the audio grounds 273 and 373. Separated from, shielding four audio signal stages: microphone 271; 371, audio ground 273; 373, right speaker 277; 377, and left speaker 279; 379 of earset 200; Noise can be blocked.
  • the ear set 400 may include an electronic device connecting unit 420, a first microphone 440, a second microphone 450, a right speaker 460, and a left speaker 480.
  • the ear set 400 may further include a volume up and volume down button (not shown) for adjusting the volume of the electronic device.
  • the electronic device connecting portion 420 is inserted into an ear jack (not shown) of the electronic device 490, and may connect the ear set 400 and the electronic device 490.
  • FIG. 5 is a circuit diagram of an earset device of an earset having two microphones according to a first embodiment of the present invention.
  • the switch 540 is mounted on the ear set 500 having two microphones, and the switch 540 is connected to the right speaker of the ear set 500 according to the voltage input to the first microphone terminal 522.
  • 577 and the left speaker 579 are commonly connected to one of the right speaker terminal 526 and the left speaker terminal 528, and the other of the right speaker terminal 226 and the left speaker terminal 228 is connected to the second one.
  • the switch 540 causes the right speaker 577 to be connected to the left speaker terminal 528 and the second microphone 575 to the right.
  • a noise suppressor technique using two microphones applied to a conventional electronic device may be implemented in the ear set 500.
  • the switch 540 allows the right speaker 577 to be connected to the right speaker terminal 526 and the second microphone 575 to be opened.
  • the conventional earset 500 may be implemented.
  • the left speaker 579, the audio ground 573, and the first microphone 571 are connected to the left speaker terminal 528, the audio ground terminal 524, and the first microphone terminal 522, respectively, as in the related art. have.
  • the earset device 550 of the earset 500 may include an electronic device connecting portion 520 and a switch 540.
  • the electronic device connecting unit 520 may include a first microphone terminal 522, an audio ground terminal 524, a right speaker terminal 526, and a left speaker terminal 528 of an earset having a conventional structure.
  • the switch 540 may include a power input terminal 541, a first signal input terminal 542, a second signal input terminal 543, a first signal output terminal 546, and a second signal output terminal 547. 540 may be an analog switch.
  • the first microphone terminal 522 may be configured to be connected to the first microphone 571 of the ear set 500 and the power input terminal 541 of the switch 540 by a signal line.
  • the right speaker terminal 526 may be configured to be connected to a signal line with the second signal output terminal 547 of the switch 540.
  • the left speaker terminal 528 may be configured to be connected to the left speaker 579 of the earset 500 and the first signal output terminal 546 of the switch 540 by a signal line.
  • the power input terminal 541 of the switch 540 is configured to be connected to a signal line and a signal line connecting the first microphone terminal 522 and the first microphone 571, and the first signal input terminal 542 is an earset 500. It is configured to be connected to the right speaker 577 of the) by a signal line, and the second signal input terminal 543 may be configured to be connected to the second microphone 575 of the earset 500 by a signal line.
  • the switch 540 may receive power through the power input terminal 541, the switch 540 according to the input voltage of the power input terminal 541 (according to the voltage of the first microphone terminal 522), The first signal input terminal 542 of the switch 540 is switched to be connected to the first signal output terminal 546 or the second signal output terminal 547, and the second signal input terminal 543 of the switch 540 is connected to the second signal.
  • the connection to the output terminal 547 or the second signal input terminal 543 may be switched to open.
  • the switch 540 connects the first signal input terminal 542 to the second signal output terminal 547 when the voltage of the power input terminal 541 (the first microphone terminal 522) is smaller than the specified reference voltage.
  • the switch may be switched to open the second signal input terminal 543.
  • the first signal input terminal 542 is connected to the first signal output terminal 546.
  • the second signal input terminal 543 may be switched to be connected to the second signal output terminal 547.
  • the electronic device 580 may include an ear jack 581 having a conventional structure, and the ear jack 581 may include a microphone terminal 582, an audio ground terminal 584, a right audio terminal 586, and The left audio terminal 588 may be included.
  • the microphone terminal 582, the audio ground terminal 584, the right audio terminal 586, and the left audio terminal 588 are typically configured to be connected to a codec (not shown) of the electronic device 580.
  • the microphone terminal 582 is configured to be connected to a power supply unit (not shown) of the electronic device 580, and may supply power to the earset 500, and the first microphone from the first microphone 571 of the earset 500. You can receive a signal.
  • the right audio terminal 586 may output the right audio signal of the electronic device 580 to the ear set 500.
  • the right audio terminal 586 may be able to receive the second microphone signal or to receive the second microphone signal according to the switching operation of the switch 590 of the electronic device 580, the switch ( 590 may be connected in series between the right audio terminal 586 and a codec (not shown).
  • the switch 590 is connected to the microphone terminal 582, for example, when the voltage output to the microphone terminal 582 is greater than or equal to the specified reference voltage, the first codec (not shown) of the electronic device 200 2 microphone signal input terminal (not shown) and the right audio terminal 586, and when the voltage output to the microphone terminal 582 is lower than the specified reference voltage, the first codec (not shown) of the electronic device 200
  • the two microphone signal input terminals may not be connected to the right audio terminal 586.
  • the left audio terminal 588 may output the left audio signal of the electronic device 580 to the ear set 500.
  • the first microphone terminal ( The 522 is connected to the microphone terminal 582 of the electronic device 580, and receives power from the electronic device 580 through the first microphone terminal 522, and also through the microphone 571 of the earset 500.
  • a microphone signal may be output to the electronic device 580.
  • the audio ground terminal 524 is connected to the audio ground terminal 584 of the electronic device 580
  • the right speaker terminal 526 is connected to the right audio terminal 586 of the electronic device 580
  • the left speaker The terminal 528 may be connected to the left audio terminal 588 of the electronic device 580.
  • the earset device 650 of the earset 600 may further include a voltage detector 660 that is typically used when checking a voltage in the configuration of FIG. 5.
  • the voltage detector 660 may output a high or low signal to the switch 640 according to the voltage of the microphone terminal 622. For example, if the voltage at the microphone terminal 622 is lower than the specified reference voltage, the voltage detector 660 outputs a low signal. If the voltage at the microphone terminal 622 is higher than the specified reference voltage, the voltage detector 360 is high. Can output a signal.
  • the high or low signal may be a switching control signal of the switch 640.
  • the switch 640 causes the right speaker 677 to be connected to the left speaker terminal 628 and the second microphone 675 to the right speaker terminal 626. Or a switch 640 to connect the right speaker 677 to the right speaker terminal 626 and to open the second microphone 675.
  • the earset device 650 of the earset 600 may include an electronic device connection 620, a switch 640, and a voltage detector 660.
  • the electronic device connector 620 may include a first microphone terminal 622, an audio ground terminal 624, a right speaker terminal 626, and a left speaker terminal 628.
  • the switch 640 includes a power input 641, a first signal input 642, a second signal input 643, a third signal input 644, a first signal output 646, and a second signal output 647. It may include, and the switch 640 may be an analog switch.
  • the voltage detector 660 may include a voltage detector input terminal 661 and a voltage detector output terminal 662.
  • the first microphone terminal 622 may be configured to be connected to the first microphone 671 of the earset 600 and the power input terminal 641 of the switch 640 by a signal line.
  • the right speaker terminal 626 may be configured to be connected to the second signal output terminal 647 of the switch 640 by a signal line.
  • the left speaker terminal 628 may be configured to be connected to the left speaker 679 of the ear set 600 and the first signal output terminal 646 of the switch 640 by a signal line.
  • the power input terminal 641 of the switch 640 is configured to be connected to a signal line and a signal line connecting the first microphone terminal 622 and the first microphone 671, and the first signal input terminal 642 is an earset 600. It is configured to be connected to the right speaker 677 of the () and a signal line, the second signal input terminal 643 may be configured to be connected to the second microphone 675 of the earset 600 by a signal line.
  • the third signal input terminal 644 of the switch 640 may be configured to be connected to the voltage detector output terminal 662 by a signal line.
  • the voltage detector input terminal 661 of the voltage detector 660 is configured to be connected to a signal line and a signal line connecting the first microphone terminal 622 and the power input terminal 641, and the voltage detector output terminal 662 is a switch 640. It may be configured to be connected to the third signal input terminal 644 of the signal line.
  • the voltage detector 660 outputs a high or low signal through the voltage detector output terminal 662 according to the input voltage of the voltage detector input terminal 661 (according to the voltage of the first microphone terminal 622), thereby switching the switch ( It may be input to the third signal input terminal 644 of the 640.
  • the voltage detector 660 For example, if the voltage at the voltage detector input terminal 661 (first microphone terminal 622) is lower than the specified reference voltage, the voltage detector 660 outputs a low signal, and the voltage detector input terminal 661 (first microphone terminal ( The voltage detector 660 may output a high signal when the voltage of 622) is greater than or equal to a specified reference voltage.
  • the switch 640 may be supplied with power through the power input terminal 641, and the switch 640 may be output from the voltage detector output terminal 662 and may be a high or low signal input through the third signal input terminal 644.
  • the first signal input terminal 642 of the switch 640 is switched to be connected to the first signal output terminal 646 or the second signal output terminal 647, and the second signal input terminal 643 of the switch 640 is switched.
  • the second signal output terminal 647 may be connected to or switched to open the second signal input terminal 643.
  • the switch 640 when the switch 640 receives a low signal through the third signal input terminal 644, the switch 640 switches the first signal input terminal 642 to be connected to the second signal output terminal 647, and the second signal input terminal 643. ) Can be switched to open.
  • the switch 640 when the switch 640 receives a high signal through the third signal input terminal 644, the switch 640 switches the first signal input terminal 642 to be connected to the first signal output terminal 646 and the second signal input terminal.
  • the switch 6433 may be switched to be connected to the second signal output terminal 647.
  • the electronic device 580 of FIG. 6 may correspond to the electronic device 580 shown in FIG. 5. Therefore, a description overlapping with the description with reference to FIG. 5 regarding the connection relationship between the electronic device 580 and the electronic device 580 and the ear set 600 will be omitted.
  • the earset 500 and 600 may receive power from the electronic device 580.
  • the switch 540; 640 of the ear set 500; 600 controls the right speaker 577; 677 and the left speaker 579; 679 of the ear set 500; 600 to the right speaker terminal. 526; 626 and the left speaker terminals 528; 628 to be connected in common, and the other of the right speaker terminals 526; 626 and left speaker terminals 528; 628 to the earset 500; 600
  • a switching operation may be performed to be connected to the second microphones 575 and 675.
  • the ear set 500; 600 when the ear set 500; 600 is connected to the electronic device 580, when the electronic device 580 is in a call mode, the ear set 500; 600 is connected to the first microphone terminal 522; 622. Power may be supplied, and the power at this time may be maintained at, for example, 2.8V.
  • the ear set 500; 600 when the electronic device 580 is connected to the electronic device 580, when the electronic device 580 is in a normal mode such as an MP3 mode or a non-call mode, the ear set 500; 522 and 622 may be supplied with power, and the power may be maintained at, for example, 1.8V.
  • the switches 540 and 640 switch the first signal input terminals 542 and 642 to be connected with the first signal output terminals 546 and 646, and the second signal input terminals 543 and 643 switch the second signal output terminals 542 and 642.
  • the circuit in which the noise suppressor function using the two microphones applied to the conventional electronic device is implemented in the earset 500 or 600 during a call, and the two to send sound through one channel (one speaker) It may be a microphone / mono mode (2MIC / MONO MODE), it is possible to enable a noise-free optimized call in the call mode of the electronic device 580 using the earset (500; 600).
  • the earset 500 and 600 are connected to the electronic device 580 and the electronic device is general.
  • the voltage at the first microphone terminal 522; 622 of the switch 540; 640 is lower than the specified reference voltage. Accordingly, the switches 540 and 640 switch the first signal input terminals 542 and 642 to be connected to the second signal output terminals 547 and 647 and switch the second signal input terminals 543 and 643 to open, thereby causing the earset.
  • a right speaker 577; 677 of 500; 600 is connected to a right audio terminal 586 of the electronic device 580 (the right audio terminal 586 is a second microphone signal input terminal of a codec (not shown) (Not shown)). Accordingly, the right speakers 577 and 677 of the earset 500 and 600 and the right audio input terminal (not shown) of the codec (not shown) of the electronic device 200 are connected, and two channels (left and right speakers 579) are connected. ; 679, 577; 677) to the 1 microphone / stereo mode (1 MIC / Stereo Mode) to send a sound.
  • FIG. 7 is a circuit diagram of an earset device according to a third embodiment of the present invention
  • FIG. 8 is a circuit diagram of an earset device according to a fourth embodiment of the present invention.
  • the configurations and connection relationships of the earsets 200 and 300 and the electronic devices 280 and 380 illustrated in FIGS. 7 and 8 are the same as those illustrated in FIGS. 2 and 3, respectively.
  • the terminals of the electronic device connecting parts 220 and 320 are the left speaker terminals 228 and 328, the right speaker terminals 226 and 326, the audio ground terminals 224 and 324, and the first microphone.
  • terminals of the electronic device connecting parts 220 and 320 are the left speaker terminals 228 and 328 and the right speaker terminal 226. 326, the first microphone terminals 222 and 322, and the audio ground terminals 224 and 324 are mechanically positioned in this order.
  • FIG. 9 is a circuit diagram of an earset device of an earset having two microphones according to a third embodiment of the present invention
  • FIG. 10 is a circuit diagram of an earset device of an earset having two microphones according to a fourth embodiment of the present invention.
  • the configuration and connection relationship of the earsets 500 and 600 and the electronic devices 580 and 680 illustrated in FIGS. 9 and 10 are the same as those illustrated in FIGS. 5 and 6, respectively.
  • . 5 and 6 show that the terminals of the electronic device connecting parts 520 and 620 are the left speaker terminals 528 and 628, the right speaker terminals 526 and 626, the audio ground terminals 524 and 624, and the first microphone.
  • terminals of the electronic device connecting portions 520 and 620 are the left speaker terminals 528 and 628 and the right speaker terminal 526, respectively. 626, the first microphone terminals 522 and 622, and the audio ground terminals 524 and 624 are mechanically located in this order.
  • Each of the above-described components of the ear set according to various embodiments of the present disclosure may be composed of one or more components, and the name of the corresponding component may vary according to the type of the ear set.
  • An earset according to various embodiments of the present disclosure may be configured to include at least one of the aforementioned components, and some components may be omitted or further include other additional components.
  • some of the components of the earset according to various embodiments of the present invention are combined to form a single entity, thereby performing the same functions of the corresponding components before being combined.
  • the mechanical position of each component of the ear set according to various embodiments of the present invention can be variously changed.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

L'invention concerne des écouteurs, selon divers exemples, comprenant: une unité de connexion de dispositif électronique ayant une borne de microphone reliée à un microphone d'écouteur, une borne de mise à la terre audio connectée à une mise à la terre d'écouteur, une borne de haut-parleur droit, et une borne de haut-parleur gauche ; et un commutateur pour permettre, en fonction d'une tension de la borne de microphone, à un haut-parleur droit et un haut-parleur gauche des écouteurs d'être reliés mutuellement à l'une de la borne de haut-parleur droit et de la borne de haut-parleur gauche, et l'autre borne parmi la borne de haut-parleur droit et la borne de haut-parleur gauche étant connectée à une mise à la terre de protection des écouteurs. D'autres exemples sont possibles.
PCT/KR2014/012482 2014-07-23 2014-12-17 Écouteurs et procédé de fonctionnement d'écouteurs Ceased WO2016013733A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14897915.6A EP3174309B1 (fr) 2014-07-23 2014-12-17 Écouteurs et procédé de fonctionnement d'écouteurs
US15/328,230 US10225642B2 (en) 2014-07-23 2014-12-17 Earset and earset operation method
CN201480080811.5A CN106537932B (zh) 2014-07-23 2014-12-17 耳机及耳机操作方法

Applications Claiming Priority (2)

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KR1020140093352A KR102161151B1 (ko) 2014-07-23 2014-07-23 이어셋 및 이어셋의 동작 방법
KR10-2014-0093352 2014-07-23

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WO2016013733A1 true WO2016013733A1 (fr) 2016-01-28

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US (1) US10225642B2 (fr)
EP (1) EP3174309B1 (fr)
KR (1) KR102161151B1 (fr)
CN (1) CN106537932B (fr)
WO (1) WO2016013733A1 (fr)

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Also Published As

Publication number Publication date
EP3174309A1 (fr) 2017-05-31
KR20160011971A (ko) 2016-02-02
EP3174309B1 (fr) 2019-04-17
KR102161151B1 (ko) 2020-09-29
US10225642B2 (en) 2019-03-05
CN106537932B (zh) 2019-05-28
CN106537932A (zh) 2017-03-22
EP3174309A4 (fr) 2018-03-07
US20170230747A1 (en) 2017-08-10

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